Machine for reaming holes in spool-blocks



(No Model.) 3 ShOet-Sheet 1. R. L. WIGGINS.

MACHINE FOR REAMING HOLES IN SPOOL BLOCKS. NO. 488,643. Patented Dec.27, 1 892.

3 t e e h s s t e e h S 3 S N I G G m L R m d 0 M O W MACHINE FORREAMING HOLES IN SPOOL-BLOCKS. No.. 488,643.

Patented Dec. 27, 1892.

Il IYgiEr 12mm; W9 0 UNITED STATES PATENT OFFICE.

RICHARD LEANDER VIGGINS, OF VVILLIMANTIC, CONNECTICUT.

MACHINE FOR REAMING HOLES IN SPOOL-BLOCKS.

SPECIFICATION forming part of Letters Patent No. 488,643, dated December27, 1892.

Application filed June 14, 1892.

To all whom it may concern.-

Be it known that I, RICHARD LEANDER WIG- GINS, acitizen f the UnitedStates, residing at \Villimantic, in the county of Windham and State ofConnecticut, have invented a new and usefullmprovementin Machines forBeaming Holes in Spool-Blocks, of which the following is aspecification.

My invention relates to improvements in reaming machines.

The object of the present invention is to provide a machine for reaming,enlarging or truing holes in blocks and more especially the holes inwhite birch spool blocks when the latter are in the rough.

A further object of the invention is, preparatory to reaming, to centerthe spool blocks from their openings instead of from their sides,whereby the operation of reaming and truing will be unaffected by anyswelling or shrinkage of the spool-blocks.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings and pointed out in the claims hereto appended. Inthe drawings-Figure 1 is a perspective view of a reaming machineconstructed in accordance with this invention. Fig. 2 is a centralvertical sectional view. Fig. 3 is a horizontal sectional view on line3, 3 of Fig. 2. Fig. 4c is a similar View on line 4, 4 of Fig. 2. Fig. 5is a detail sectional view of the upper portion of the machine; on line5, 5 of Fig. 2. Fig. 6 is a similar view of the lower portion. Fig. 7 isa detail perspective view of the clearing arm and the spurred disk.Fig.8 is a detail sectional view of the foot of the stem of the lowercentering plug. Fig. 9 is a detail sectional view showing a modificationof a portion of the invention.

Like numerals of reference indicate corresponding parts in all thefigures of the drawlugs.

1 designates a main frame provided intermediate its top and bottom witha horizontal spool table 2 on which is mounted a reciprocating carriage4 which conveys spool blocks from a hopper 5 to the front of the table2, and deposits them over an opening 6, where a spool block is centeredby an upper centering plug 7 and a lower centering plug 8 Serial No.436,730- (No model.)

which enter the central opening 9 of a cylindrical spool-block 10. Thespool block 10, while the centering plugs 7 and 8 are still in thecentral opening is clamped by a spurred diskll which holds the spoolblock 10 against lateral movement while the same is being reamed. Thecentering plugs are then withdrawn, and a reamer 12 descends andenlarges and trues the central opening 9 of the spool block. It willthus be seen that the spool block is centered from the centralopeningand not from its sides, whereby any swelling or distortion of the spoolblock will not interfere with the reaming.

It frequently happens that after spool blocks have been prepared in therough, the

drying of the wood makes them oval in cross section, and it would beimpossible to gage the center from the outside surface, so that theabove provision of centering from the central opening is of greatimportance.

The carriage is provided with a V-shaped mouth 13 to receive thespool-block and the latter is positively held therein by springactuatedfingers 14:, which are pivoted intermediate their ends and have theirrear ends separated by a spiral spring 15 which causes the front ends ofthe fingers to clamp the spool-block. The rear ends of the fingers areprovided with vertical pins 16 arranged to engage converging sides 17 ofa plate 18, which is arranged back of the carriage and is adapted whenthe carriage moves inward or rearward to draw the rear ends of thefingers together to open the front ends thereof to release a spool, andto prepare the mouth of the carriage for the reception of another spool.The plate 18 is adj ustably mounted being provided with a slot 19 andsecured by aset screw 20 arranged in the slot.

The upper centering plug 7 depends from the outer end of along arm 2lofan L-shaped lever 22 which is mounted on a vertically movable springdepressed rod 23, and has its short arm 24 connected by a spiral spring25 with a cross bar 26 of a spool clamping frame 27, and the said spring25 is adapted to drawpressed rod 23 is raised against the action of' aspring 28 disposed on the, lower portion of the rod 23 and interposedbetween the lower end of the same and the cross bar 26, the latter beingprovided with a recess 29 and an opening 29 to receive the L-shapedlever 22.

The lower centering plug is arranged beneath the spool table 2, and isarranged at the upper end of a stem 30, and may form a part thereof; andthe lower end of the stem is squared and has attached to it a cushionedfoot 31 provided at its lower end with an antifriction roller 32 andarranged above and operated by a cam 33 which is mounted on a shaft 34and is adapted to lift the lower center-ing plug to carry the sameupward through the openings 6 of the table 2 into the lower end of thecentral opening of the spool block. The foot 31 is longitudinallyslotted and is secured to the stem by bolts 35 arranged in the slot 36,and it is held downward upon the cam 33 by a spiral spring 37 interposedbetween the upper end of the foot 31 and a horizontal block 38 of thestem. At the inner end of the block 38 is secured 'a guide rod 39 havingits upper end arranged in an opening 40 of a guide plate 41 which isalso provided with an opening 42 to receive the stem, and the saidhorizontal block projects outward from the front of the frame and isadapted to be engaged by the lower end 43 of a depending push rod 44 ofa reamer carrying frame 45 to prevent the reamer striking the lowercentering plug. The spring actuated foot is adapted to yield to the camand insures a steady movement free from jerks. The foot is guided by ananti-friction roller 46 mounted on a horizontal bracket arm 47 extendingforward from the rear of the main frame, and arranged in rear of thefoot and the stem of the lower centering plug. 7

After the spool block has been centered by the two centering plugsentering the central opening, it is clamped by the said spurred disk 11which has small spurs 49 depending from its lower face, and which isprovided with a central opening 50 to permit the passage of the uppercentering plug, and to enable it to move independently of the centeringplug. The upper end of the rod 23 is U- shaped and provides a dependingportion 51 which is arranged parallel with the rod, and which is locatedin an opening of the cross bar 26, when the block is being centered; butwhen a block is clamped, the cross-bar descends independently of the rod23 and afurther movement of the machine lifts the latter causing thedepending parallel portion 51 to become disengaged from the cross bar 26allowing the spring 25 to draw the short arm of the L-shaped levertoward its cross bar 26 to throw the centering plug 7 away from thespurred disk to provide a passage for the reamer 12. The centering plugis raised out of the opening of the spurred disk by a bell-crank lever52 which is fulcrumed at its angle, and has one arm provided at the endwith a roller 53 which is adapted to be engaged by a foot 54 of thereamer carrying frame to raise the other cally.

arm 55 which engages a horizontal pin 56 of the rod 23 to lift thedepending parallel portion 51 out of the opening of the cross bar. Theupper edge of the arm 55 is slightly curved to facilitate the movementof the bell-crank lever, and is provided at its outer end with ashoulder 57 which limits the outward swing of thelong arm of theL-shaped lever 22 by forming a stop for the horizontal pin 56. The foot54 is formed at the lower end of abar 58, which is adj ustably connectedwith the reamer carrying frame byalongitudinally slotted L-shaped plate59 and set screws 60; and the said bar 58 is vertically disposed, and isprovided with an anti-friction roll 61 which bears against one side ofthe main frame; and aguide 62 is secured to the main frame and extendshorizontally therefrom and receives the bar 58. The longitudinallyslotted plate and the set screws permit the foot to be adjusted tooperate the bell-crank lever at the proper time. The centering plug isreturnedwithin the recess of the cross-bar 26 and allowed to enter theopening of thespurred disk when the clamping frame is raised to releasethe spoolblock, by an inclined guide 63 of an arm 64 of a plate 65 whichis adjustably mounted on the frame and arranged above the cross bar 26,and is adapted to be engaged by the horizontal pin 56 to turn the latterat right angles to the cross bar 26 to bring the centering plug 7directly over the central opening of the spurred disk when the cross bar26 is lifted. This turning movement also brings the depending parallelportion 51 of the rod 23- directly over its opening of the cross bar andthe spiral spring 28 disposed on the rod 23 causes the latter to movedownward.

Thereamer carrying frame is vertically movable, and is composed of siderods 66 and top and bottom cross bars 67 and 68 which connect the endsof the side rods, and the latter are round and are arranged in openingsof a stationary transverse bar 70 of the main frame and are guided bythe same. Vertical motion is imparted to the reamer carrying frame by apitman 71 which has its upper end connected to the bottom cross-bar 68,and its lower end attached to a crank 69 at the inner end of the shaft34. The reamer is secured to the lower end of a vertical shaft 72, whichis journaled in the upper cross bar 67 of the reamer carrying frame, andis held against vertical movement in the bearing opening of the topcross-bar 67 by collars 73 which are secured by set screws to the shaft,and are arranged above and below the cross-bar 67. The shaft 72 iscarried vertically by the reamer carrying frame 45 and is provided witha longitudinal groove 74 in which is arranged a key 75 of a pulley 76,whereby the latter willcause a rotation of the shaft and will allow thesame to move verti- The side bars 66 of the reamer carrying frame, passthrough openings 77 of the cross bar 26 and form guides upon which thecrossbar 26 moves, and they are provided with adjustable lifting collars78 which are secured to the side rods by set screws and are adapted toengage the lower face of the cross-bar 26 to lift the same as the reamerascends after the operation of reaming to release the spool block.

The spool block is prevented from clinging to the spurred disk 11 by avertically adj ustable rod 79 mounted at one side of the spool table 2and having a horizontally disposed clearing arm 80 which extends inwardand rests upon the top of the spool block. The spurred disk 11 isprovided in its lower face with a recess 81 to receive the end of theclearing arm when the clamping frame descends to prevent the clearingarm interfering with the clamping of the spool block. WVhen the clampingframe ascends, the clearing arm holds the spool block down upon thetable, until it is thrown from the table by the next spool to beoperated on. The rod 79 is provided with a longitudinal opening and isadjustable by set screws arranged within the opening; and this openingis formed by bending the lower end of the rod on itself or by any othersuitable means.

The clamping frame 27 is composed of the cross-bar 26, parallel to siderods 82 and a lower cross rod 83, which is provided intermediate itsends with an angular bend, and which is connected to the upper end of apit man 84. The bottom cross-rod 83 is provided at its ends with eyeswhich receive threaded ends 85 of the side rods 82, and are secured tothe latter by nuts arranged above and below the eye whereby the crossrod 83 is adjustably connected to the lower ends of the side rods 82,and the upper ends of the rods 82 are similarly secured to the cross-bar26. The lower end of the pitman 84 is enlarged and is provided with alongitudinal slot 86 in which is arranged the shaft 34, and it isprovided at its lower end with alaterally extending'anti-friction roller87 which is mounted on a pin, and which is engagedby a camwheel 88mounted on the shaft 34 and causing the clamping frame to descend toclamp a spool block. The open or mutilated portion of the cam wheel 88permits the clamping frame to be lifted by the collars 78 of the siderods 66to release a spool-block.

The vertical reciprocation of the reamer carrying frame actuates thespool carriage by engaging and causing an oscillation of the upper end89 of a swinging lever 90, which is fulcrumed on a bracket arm 91 at apoint intermediate its ends, and it is provided at its lower end with alaterally extending pin 92 which is arranged in a bifurcation 93 of astud 94 of the carriage 4. The front portion of the upper end 89 of theswinging lever is provided with a curved edge 95 which is engaged by ahorizontally adjustable plate 96 mounted on the top cross bar 67 of thereamer carrying frame and provided with a depending extension 97 andadapted to force the upper portion 89 of the swinging lever 90 rearwardto move the carriage to the front of the frame. The upper portion 89 ofthe swinging lever 90 is inclined toward the front of the frame, and itsrear edge 98 is engaged by a horizontally extending pin 99 of avertically adjustable plate 100, which is mounted on the top cross bar67 and is staggered slightly toward the rear of the frame and has itsupper end provided with a quarter turn.

The carriage is provided in its sides with longitudinal grooves 101 andreceives in them flanges 102 of guide strips 103 secured to the upperface of the table and arranged parallel thereon. The spring actuatedfingers which engage the spool block are pivoted to the lower face of atop plate 104, which is adj ustably mounted above the body of thecarriage 4 by an L-shaped plate 105 having ahorizontal portion securedto the body of the carriage and having a vertical portion provided withvertical slots 106, in which are arranged set screws 107 which securethe horizontal plate 104 in its vertical adjustment. The V- shaped mouth13 is formed byaV-shaped recess in the front end of the body of thecarriage and a corresponding recess in the front end of the horizontalplate 104; and the front ends of the fingers are inclined toward eachother to confine a spool block in the mouth of the carriage.

The hopper 5 is vertically disposed and is composed of parallel sectionsor bars 108, which have their opposed faces longitudinally concavelygrooved, and which are ad justably connected together by horizontallydisposed slotted plates 109 and .set screws 110. The front section orbar 108 of the hopper is adjustably secured to the main frame by ahorizontally disposed L-shaped plate 111, which has one arm 112 arrangedtransversely of the frame and provided with vertical slots, and arearwardly extending arm 113 provided with a longitudinal slot andsecured to the front bar or section of the hopper by a set screw.

The horizontally disposed L-shaped plate or knee is secured to the mainframe by set screws arranged in the vertical slots of the transversearm. The pitman 84 is guided by a horizontal bracket arm 114 whichextends inward from one side of the frame, and is provided with anopening 115 to receive the pitman 34. rying frame is guided by verticalparallel guide. rods 116 which rise from horizontal arms 117 of abracket plate 118, and which are arranged in openings 119 of the bottomcross bar 68; and the latter is bowed outward to clear the lowercentering plug stem and carries the depending push bar 44 which preventsthe reamer coming in contact with the lower centering plug. The forwardmovement of the carriage is limited byavertically adjustable stop plate120, which is mounted on the front end of the spool table and isprovided with a longitudinal slot to receive aset The lower end of thereamer car-v screw 121, and has its inner end bent verti-' cally to forma flange to be engaged by the carriage.

In Fig. 9 of the accompanying drawings is illustrated a modification ofa portion of the invention in which a lower spurred disk 11 is employed,and is arranged in a depression in the face of the spool table. If foundnecessary or desirable thelower spurred disk 11 may be employed toassist in holding the spool blocks.

The machine is also adapted for operating on finished spools to enlargeand true the hole of the same, and in such cases the clamping disk willbe spurless to avoid injuring the spools or marring their surfaces.

What I claim is- 1. In a reaming machine, the combination of aframe, areamer, avertically movable centering plug, adapted to enter the openingof a spool block, and means for clamping a spool block after the latteris centered, substantially as described.

2. In a reaming machine, the combination of aframe provided with a spooltable having an opening, a reamer, the upper and lower verticallymovable centering plugs arranged above and below the spool table andadapted to enter the opening of a spool block to center the latter, andmeans for clamping the spool block after the latter has been centered,substantially as described.

3. In a reaming machine, the combination of a frame having a spooltable, a vertically movable centering plug arranged below the spooltable, a vertically movable and horizontally swinging centering plugarranged above the spool table, said centering plug being adapted toenter the opening of the spool block,.a reamer arranged above the spooltable and means for holding a spool block after the latter has beencentered,substantially as described.

4. In a reaming machine, the combination of a frame provided with aspool table, a spurred disk arranged above the spool table, and havingan opening and adapted to clamp a spool block when the latter has beencentered, a reamer arranged above the spool table and adapted to passthrough the opening of the disk into the spool block opening, and acentering plug having a vertical movement and adapted to enter theopening of the spool block through the opening of the disk to center thespool block, and having a horizontal movement to carry it away from thereamer, substantially as described.

5. In a reaming machine, the combination of a frame having a spooltable, a vertically movable spurred disk having an opening, a reamer, acentering plug, and a clearing arm adapted to engage the upper end of aspool block to free the latter from the disk, substantially asdescribed.

6. In a reaming machine, the combination of a frame having a spooltable, a vertically movable disk adapted to clamp a spool block,

and having an opening, a vertically movable rod, an L-shaped leverfulcru med at its angle on the rod and carried by the same, a centeringplug depending from one of the arms and adapted to enter the opening ofthe disk, and a spring engaging the other arm of the L shaped lever tocarry the centering plug away from the disk, substantially as described.

7. In areaming machine, the combination of a frame having a spool table,a vertically movable cross-bar a spurred disk having an opening andsecured to and carried by the cross-bar, a vertically movable springactuated rod mounted in the cross-bar and provided at its upper end witha depending parallel portion adapted to enter an opening of thecross-bar to prevent the rod turning, said rod being provided at itsupper end with a horizontally extending pin, an L-shaped lever securedat its angle to the rod a depending centering plug carried by one of thearms of the L-shaped lever and adapted to enter the opening of the disk,a spring connected to the other arm of the L-shaped lever and to thecross-bar and adapted to move the centering plug away from the disk, andmeans for lifting the rod and an inclined guide arranged to engage thehorizontal pin to turn the rod and carry the centering plug over theopening of the disk, substantially as described.

8. In a reaming machine, the combination of a frame, a verticallymovable reamer carrying frame, a cross-bar vertically movable thereon, aspurred disk having an opening and secured to and carried by thecross-bar, a vertically movable spring actuated rod mounted on thecross-bar and provided at its upper end with a depending parallelportion adapted to enter an opening of the cross-bar to hold the rodagainst turning, a pin extending horizontally from the upper end of therod, an L-shaped lever secured at its angle to the rod, a centering plugdepending from one arm of the lever, a spring connecting the other armof the lever with the cross-bar, an inclined guide arranged to engagethe pin, and a bell-crank lever fulcrumed on the crossbar, and actuatedby the reamer carrying frame and arranged to engage the horizontal pinto lift the rod, substantially as described.

9. In a reaming machine, the combination of a frame, a verticallymovable reamer carrying frame, a cross-bar mounted thereon, a verticallymovable rod mounted on the crossbar, a spring for moving the rod downward, an L-shaped lever secured at its angle to the rod, a centeringplug depending from one arm of the L-shaped lever, a spring connectingthe other arm of 'the lever with the cross 'bar, and a bell-crank leverfulcrumed on the cross-bar and actuated by the reamer carrying frame andarranged to engage the rod, and having a stop arranged to limit theturning of the rod, substantially as described.

10. In a reaming machine, the combination of a main frame, a reamercarrying frame vertically movable therein and provided with a dependingfoot, a cross-bar mounted on the reamer carrying frame, a rod mountedfor vertical movement on the cross-bar, an L- shaped lever secured atits angle to the rod, and having one arm actuated by a spring, acentering plug depending from the other arm, and a bell-crank leverfulcrumed on the crossbar and having one arm arranged to engage the rodto lift the same and having its other arm arranged to be engaged by thefoot of the reamer carrying frame, substantially as described.

11. In a reaming machine, the combination of a reamer carrying frame, amain frame, a vertically adjustable foot depending from the reamercarrying frame, a cross-bar mounted on the reamer carrying frame, a rodmounted for vertical movement in the cross-bar, a spring actuatedL-shaped lever secured at its angle to the rod, a centering plugdepending from one of its arms, a horizontal pin projecting from theupper end of the rod, and a bell-crank lever fulcrumed on the cross-barand having one arm arranged to engage the pin and provided with a stopto limit the swing of the same, and having its other arm provided with aroller and arranged to be engaged by said foot, substantially asdescribed.

12. In a reaming machine, the combination of a main frame, a reamercarrying frame mounted thereon and having avertical movement andprovided with side rods, a crossbar mounted on the side rods and havinga vertical movement and adapted to be raised by the reamer carryingframe, a pitman connected with the cross-bar, and a cam arranged toengage the pitman to move the same downward to cause the cross-bar toclamp a spool block, substantially as described.

13. In a reaming machine, the combination of a main frame, a reamercarrying frame mounted thereon and having a vertical movement, andprovided with side rods a crossbar mounted on the side rods and having avertical movement and adapted to clamp a spool block, means for movingthe cross-bar downward, and collars arranged on the side rods andadapted to engage the cross-bar and raise the same, substantially asdescribed.

14. In a reaming machine, the combination of a main frame, a reamercarrying frame havinga vertical movement therein, a reamer, a cross-barmounted on the reamer carrying frame and having a vertical movementcollars secured to the reamer carrying frame and arranged below thecross-bar, and adapted to engage and lift the -latter, and means formoving the cross-bar downward to clamp a spool block, substantially asdescribed.

15. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame, a clamping frame having a cross-baradapted to engage a spool block to hold the same, said clamping framehavinga vertical movement and being raised by the reamer carrying frame,a horizontal shaft having a crank arm, a pitman connecting the reamercarrying frame with the crank arm, a cam wheel mounted on the horizontalshaft and a pitman Sat having its upper end connected with the clampingframe and having its lower end engaged by the cam wheel to move theclamping frame downward, substantially as described.

16. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame, a clamping frame mounted on the reamer-carrying frame and having a vertical movement and being raised by thereamer carrying frame, a horizontal shaft having a crank arm connectedwith the reamer carrying frame, a cam wheel mounted on the horizontalshaft, and a pitman having its upper end connected to the clamping frameand provided at its lower end with alongitudinal slot to receive theshaft and having a laterally extending roller arranged to be engagedbythe cam wheel whereby the clamping frame is moved downward to clamp aspool block, substantially as described.

17. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame having side rods, a vertically movableclamping frame having a cross-bar mounted on the side rods, collarsarranged on the side rods and adapted to engage the crossbar to lift theclamping frame, a horizontal shaft having a crank arm connected with andactuating the reamer carrying frame, and a cam wheel for depressing theclamping frame, substantially as described.

18. In a reaming machine, the combination of a main frame, verticalparallel guide rods mounted thereon, a vertically movable reamercarrying frame composed of side rods and top and bottom cross-bars, thelatter being provided with openings to receive the guide rods, aclamping frame having vertical movement and mounted on the side rods andcomprising a cross-bar, side rods having their upper ends secured to thecrossbar and a cross-rod connecting the lower. ends of the side rods ofthe clamping frame, collars arrangedon the side rods of the reamercarrying frame and adapted to engage and lift the clamping frame, andmeans for reciprocating the reamer carrying frame and for depressing theclamping frame, substantially as described.

19. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame, a horizontal shaft, a cam mounted on thehorizontal shaft, the lower centering plug having a stem arranged to belifted by the cam, and a push bar depending from the carrying frame andarranged to engage the said stem, substantially as and for the purposedescribed.

20. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame, a lower centering plug having a stem, alongitudinally slotted foot secured to the stem and having alimited movement and provided with an anti friction wheel, a spring cushioning thefoot, a cam Wheel arranged to lift the foot and a push bar dependingfrom the reamer carrying frame and adapted to engage the stem,substantially as described.

21. In a reaming machine, the combination of a main frame, a verticallymovable reamer carrying frame, a hopper, a reciprocating spool carriagearranged below the hopper, and an oscillating lever fulcrumedintermediate its ends and having its lower end connected with thecarriage and having its upper end actuated by the reamer carrying frame,substantially as described.

22. In a reaming machine,the combination of a main frame, a verticallymovable reamer carrying frame, a hopper, a reciprocating spool carriage,an oscillating lever fulcrumed intermediate its ends and having itslower end connected with the carriage and having its upper portioninclined toward the reamer carrying frame and provided with a curvededge, a plate arranged on the reamer carrying frame and adapted toengage the curved edge of the lever, and a horizontal pin adapted toengage the inclined portion of the lever, substantially as described.

23. In a reaming machine, the combination of a main frame, a reamercarrying frame, an adjustable plate horizontally disposed on the reamercarrying frame, a vertically adjustable plate mounted on the reamercarrying frame and having a horizontally arranged pin, a carriage, anoscillating lever fulcrumed intermediate its ends and having its lowerend connected with the carriage, and having its upper end arranged to beengaged by the pin and the horizontal scribed.

24. In a reaming machine, the combination of a main frame, a hopper, anda carriage reciprocating below the hopper and comprising a body, anL-shaper1 plate secured to the body and having a vertical portionprovided with vertical slots, a horizontal plate secured to the saidvertical portion, and having set screws arranged in the slots, andspring actuated fingers pivotally mounted on the carriage, substantiallyas described.

25. In a reaming machine, the combination of a main frame, areciprocating spool carriage, and a hopper arranged above the spoolcarriage and comprising the grooved sections, one of which beingadjustably secured to the plate, substantially as demain frame, theslotted plates secured to one of the sections and connected with theother by set screws arranged in the slots, substantially as described.

26. In a reaming machine, the combination of a frame, a reamer,acentering plug adapted to enter the opening of a spool block, and aclamping disk having an opening receiving the centering plug and adaptedto clamp a spool block after the latter has been centered, substantiallyas described.

In testimony that I claim the foregoing as my own I have heretoaffixedmy signature in the presence of two Witnesses.

RICHARD LEANDER WIGGINS.

Witnesses:

E. M. DURKEE, O. M. PALMER.

